Home / 378,211.10-566,539.05-260,015.90

Finding the Fourth Proportional to 378,211.10, 566,539.05 and 260,015.90

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Solution

The fourth proportional to 378,211.10, 566,539.05 and 260,015.90 is: 389,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,211.10 : 566,539.05 = 260,015.90 : x
  2. Step 2: Convert to fraction form
    378,211.10/566,539.05 = 260,015.90/x
  3. Step 3: Cross multiply
    378,211.10x = 566,539.05 × 260,015.90
  4. Step 4: Simplify right side
    378,211.10x = 147,309,160,970.90
  5. Step 5: Solve for x
    x = 147,309,160,970.90/378,211.10
  6. Step 6: Final answer
    x = 389,489.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.